Personalized Unicorn Kitty 1st Birthday Long Sleeve Creeper. Cute 1st birthday Long Sleeve Creeper - Black with big polka dot number one, pink flowers and adorable unicorn kitty cat. 1st birthday gift for girls who love cats. For chillier weather, dress baby in this soft long sleeve creeper in a great fitting 1x1 baby rib. 5.0 oz., 100% combed ringspun cotton, 1x1 baby rib. White is sewn with 100% cotton thread, Flatlock seams, Double-needle stitched rib binding on neck, shoulders, sleeves and leg openings,Reinforced three-snap closure on binding.